Keto-enol tautomerization of 2-(2′-hydroxyphenyl)benzoxazole and 2-(2′-hydroxy-4′-methylphenyl)benzoxazole in the triplet state: Hydrogen tunneling and isotope effects. 1. Transient absorption kinetics

1. Al-Soufi, W.
2. Grellmann, K.H.
3. Nickel, B.